Package tying machine



July 2, 1940. G. A DUNN ET AL PACKAGE TYING MACHINE Filed March 17, 1924 14 Sheets-Sheet l f INVENTORS (Kg flflahm BY Jl1nfifge %RNETZ July 2, 1940. e. AfDUNN El AL PACKAGE TYING MACHINE FiledMarch 1 7, 1924 14 Sheets-Sheet 2 INVENTORS 6,2 flflunn 'M/TZ'ZRNET.

July 2, 1940, a. A. DUNN ETYAL 7 2,206,300

PACKAGE TYING MACHINE Filed March 17, 1924 14 Sheets-Sheet 4 July 2, 1940. (a. A. DUNN EF AL 2,206,300

I PACKA GE TYING MACHINE I I Filed March 17; 1924 14 Sheets-Sheet 7 /Z/ o b y .940- G. A. Bum HA1. 2,206,300

PACKAGE TYING MACHINE Filed March 17', 1924 1 4She ets-Sheet B INVENTORQ v flfl BY V j (5. A. DUNN ET AL memes Tum momma Filed March 11, 1924 14 Sheets-Sheet 9' July 2, 1940.

July 2, 1940.v cs. A. DUNN Er'AL PACKAGE TYING MACHINE Filed March 17, 1924 14 Sheets-Sheet l0 INVENTOR.

qwflfl Jo 1: 11/5 57- July 2, 1940. G. A. DUNN ET AL 2,206,300

memes TYING cams Filed March '17, 1924 14 Sheets-Sheet 11 y 1940- G. A. DUNN AL 2,206,300

memes Tuna MACHINE Filed March 17; 1924 14 Sheets-Sheet l2 I INVENTOR. f $6 2 flair-15 14 Sheets-Sheet 13 J/msvromf (5 A: DUNN ET' AL PACKAGE TYING MACHINE Fil ed March 17; 1924 I July 2, 1940.

a w M E July 2, 1940. GFA. DUNN El AL PACKAGE TYING @IACHINE 14 SheetS- -Sheet 14 Filed March 17, 1924 IN VEN TOR.

\ nE/drz'qlya A TORNE Patented a UNITED srA'rr-zsffeareur o-F cts o kflfl3eoficm;

Guy A. Dunn and John Eldridge, emails, can; I aaignors, by memo assignments, to Francis-A. j 'SmartBerkelcnCalii'O 1 Application Mme 17, 1924, serial No. 096.73!

40 Claims. (01. 190-31),

- This invention relates to machine'ior tying wire around boxes. [bundles or other packages. and its; object is to produce a machine which a will, be capable of continuous operation irom' a commercial bundle otwire without transferring the bundle" or coil or wirelto any-part oi the machine otherthan to ieedwire through suitable ten'sioning pulleys.

Another object of the invention is to produce 0 a splice or tie whichwill lie flat against one side of the box or bundle without the necessity of bending the twisted wire against the box as is done with some machines.

A further object of the invention is to provide means whereby the machine may make a tie and eject it in the usual way even though it may happen to be tripped accidentally. and even though no bundle is then in the machine.

In this event, a verysmall tie is produced on a,

projecting plate of the box-supporting table, and

the ejecting apparatus pushes this tie oil? the plate in the same way as the tie is pushed oil when it is placed around a bundle.

v Another object of theinvention is to provide means whereby the bundle or boxes may be pushed against a side guard just prior to the time the tie is tied around to insure holding them in the proper place while the tie is being made, but this mechanism is only intended for 0 holding the package and not intended to compress it.

Another object of 'the invention is to provide means whereby the tie end when out off will be carried around by the shuttle to the starting position there to be secured anew at a moment just prior to the time 'for the next turn of the wire around the next box, means being provided to move the tie end away from the bundle first and to thereafter cause it to-project toward the bundle toinsure its proper positioning in the apparatus.

Another object'of the invention is to provide means whereby the box" or bundle will be automatically carried out of the machine whenever the center of gravity of the box or bundle is far enough over the feed rollers.

Another object of the invention is to provide a machine of the character described with a ring capable of rotating first in one direction and then in'the other to first carry the tie around the box and to then bring the cut-01f tie end back to a position adjacent the box or bundle where it can be later secured for the production 5 of another tiewhen the clutch has been tripped.

v Othero'bjects' of the invention willappear-as the description proceeds, Q a 7 An embodiment of the invention i's shown in the accompanying drawings in which the same reference numejraiis applied to the some portion 5 throughout. but we are aware that there maybe i modifications thereof.

a Figure 1 is a view in elevation 01- the-complete machine looking in the direction or feed; Figure 1- is a detail of the shuttle controltracktaken 1 on the line la' lag Figure 1. 1

Figure 2 is aiview in elevation of the complete machine looking in the'oppos'ite direction from Figure 1.

Figure 3 is a side elevation of the machine 15 looking from the leftv of Figure 1.

Figure 4 is a side elevation of the complete machine'looking from the right, Figure 1.

Figure 5 is a sectional view of the interior operating mechanism" of the machine looking in the same'direction as Figure 3 taken on the line 5-5 of Figure 6.

Figure 6 is a view of the interior operating mechanism of the machine partly in section, looking in the same direction as Figure 4, the a shuttle and support therefor being omitted in both of the latter figures.

Figure '7 is an enlarged detail view, in section, of the device for cutting off the over-fed tie end and for holding the wire endswhen wrapped '0 around the package. c

Figure 8 is-a view looking from the right oi. Figure "7, showing the end of the package teed table and showing the relation of the wire grippers, twisting mechanism and ejectors thereto; Figure 8 is a plan partly in section of a modi-' fled form of twister.

Figure 9 is a plan view of the ejectors and twister slide portions of the package supporting table being broken away for purposes oi! illustration showing the twister gear advanced over the ends of the wire; Figure 9 31s a vertical sectional view of a portion of the twister mechanism shown in Figure 8' taken on the line 9a-9a, Figure 8 a Figure 10 is aside elevation of the main drive spur gear showing the cam for lifting the discharge. roller.

Figure 11 isa side elevation of the opposite side of the same gear showing the cam for opero 'ating the slide to push the package and tie off the feed table.

Figure 12 is a side elevation of the secondar drive gear showing the cam for the operation of the twister slide.

Figure 13 is a side elevation of the opposite side of the gear shown in Figure 12, showing the cam for operating the twisterrack.

Figure 14 is an edge view of the cam for operating the shuttle finger control.

Figure 15 is an edge view of the cam. for operating the package holding means during the time the tie is being made.

Figure 16 is a side elevation of both the cams shown in Figures 14 and '15.

Figure 17 is a side elevation of the cam for operating the D wire grip.

Figure 18 is a side elevationof the cam for operating the B wire grip..

Figure 19 is a side elevation of the cam for operating the C wire grip.

Figure 20 is a side elevation of the cam for operating the A wire grip, the degree lines on Figures 10 to 13 and Figures 14 to 20 indicating the beginning and ending of the changes in curve of the cam surfaces in each instance.

Figure 21 is a vertical section on the line 2 l2 l Figure 22 of the starting clutch.

Figure 22 is a sectional view substantially on the line 22-22 of Figure 21, of the starting clutch mechanism.

Figure 23 is a side elevation of a portion of the shuttle and the shuttle ring.

Figure 24 is a view of the shuttle, a portion of the shuttle carrying ring and a portion of the shuttle operating cam.

Figure 25 is a detail view of the means for op-' erating the package holding means when the package is being tied.

Figure 26 is a view of tie made when no package is in the machine.

Figure 26 is a view of the splice looking in the direction of he arrow of Figure 26.

Figure 27 is a vertical sectional view looking in 'the same direction as Figure 1, of the shuttle ring and other parts of the machine taken substantially on the line 2'|-2| of Figure 3 showing the shuttle ring at the end of movement,

after carrying the main body of the wire around the package.

Figure 28 is a plan view of the parts secured to the under side of the box supporting the table with the table showing only at the 'margin of the figure.

Figure 29 is a vertical section on the line 29-29 of Figure 6 looking in the direction of the arrow.

Figure 30 is a vertical sectional view of the higher portion of the base, showing the cam shaft and gears in the side of the same upon a larger scale than Figure 6, and in practically the same sectional plane.

Figure '31 is a vertical. sectional view of the partsfound in Figure 30, the plane of section being shown at 3l--3I, Figure 30 looking in the direction of the arrows.

The machine has a rectangular box-like base I higher at one end than at the other, as indicated at 2, and inside of which base the operating gears, shafts and cams are installed. Extending above the lower portion of the top of the box. or base there is a standard 3 for the support of the shuttle ring 4. Secured to the top of the raised portion 2 are two standards 5 and 8 which are bolted to said top for the support of a plate I, which affords an abutment against which boxes or bundles may be placed by the workmen.

In order to make it convenient to move the machine from place to place, the base has two rollers 8 and 8 vertically under the standard 3, and at the front it has a bracket 18 which rests castor wheels to rotate as may be required .when' the machine is to be moved. This shaft has a collar l8 to prevent dislodging the shaft from the bracket l8, should it be desired to raise the machine and place it upon cross-bars above the floor, level. The shuttle ring is indicated at 4 and it is mounted on fiverolle'rs l9 to 23which are in turn revolvable on short shafts carried by brackets 24, 25, 26, 28 and 29 extending inwardly from the fixed supporting ring 3. This oscillating shuttle ring is provided with gear-teeth I8 7 on its, periphery for turning it from its initial position through its cycle of movement to carry the wire holding grippers I96, as well as four grooved pulleys l8l to I84 inclusive over which the wire passes to the tension pulleys 35, 38. The tension pulleys consist of a plurality of grooved pulleys lying side by side and revolvable on the shafts 31, 38 so that the series of'pulleys 88 lie immediately under the series of pulleys 35. (See Figure 1.)

The shaft 31 is carried by a bracket 39 which bracket also has a rod 48 pivotally supported thereby at 4|. This rod is provided with a. rubber bumper 42 near its upper end and with a rubber bumper 43 at its lower end. Slidable on this rod is a bearing 44 which has two flat striking surfaces 45, 46, which will come in contact with the bracket 5| which carries a guide pulley 52, and

this pulley has a plate 53 with a hole 53' in it to direct the wire on said pulley. (See Figure 27.) Immediately below the pulley 52 there are five straightening rolls 54 to 58 inclusive between which the wire must pass before it can pass under one of the tension pulleys .36 The wire then passes over as many of the tension pulleys as may be deemed necessary, passing from one of the upper pulleys 35 to the supporting pulleys on the side of the shuttle ring 4, and then passing completely around the shuttle pulley I83 to the shuttle guide plate I94 and extending a short distance beyond as shown at I31. (See Figure 1.)

Extending through the base of the machine are two main shafts 68, 6|, while there are three other shafts 62, 63, 84, which also extend through the sides of the base.

The machine is driven by the worm which engages the worm wheel 66, said worm being fixed to the shaftfil' and revolvable therewith. This shaft 81 extends into two bearings 68, 68 and carries said worm 65 within a small raised housing 69 on the top of the housing (see Figures 3, 21 and 22). I

The shaft 81 has a pulley 18, around which a belt ll passes from the pulley 12 on the shaft of the motor 13, the frame standard 3 having a bracket 14 to provide a place of operation for the motor on the top of the ring frame.

Inasmuch as the shaft 61', carrying the worm 65, drives the entire machine, there is a plate 15 which encloses a suitable bearing for the end of that shaft. Since the machine runs freely at times and pulls at other times, there is a brake the slide of rotation of the ring tends over the discharge plate I26.

ring 16 secured around a boss 11 on the shaft 60, and a bolt 18 is used to hold this brake'ring vin a flxed position, another bolt" being used to adjust the tension of the brakeso that the machine will run smoothly at all times. (See Figures 1, 2 and 3.)

The shaft 80 rotates and has a belt wheel 83 on the end opposite. from the worm wheel carrying a crank pin 84. 85 passes around the wheel 83' and over a pulley 88 for the operation of the bundle feeding apparatus later to be described.

The machine is operated from t 83 and crank pin 84 by a' rack pit an 81. This pitman 8I is connected to the crank pin 84 by the cap bearing, 88, and it is slidable through a bearing 89 which 90. The object is loosely mounted on the shaft of this bearing is to hold the rack engaged with the gear 9i. (See Figures 1, i 2 and 4.)

The shaft 98 is mounted in two bearings 9| and 92 on the back of the machine (see Figure 2) and it carries a beveled gear 93 which is in mesh with a beveled gear 94 on a stubshaft 38, the latter shaft extending perpendicular to the plane 4. This stub shaft has a spur gear-91 thereon in mesh with a smaller spur gear 98 on the shaft 89, and said shaft also carries a spur gear I which has its teeth in mesh with the teeth I8 of the ring 4.

The result of the construction just described is that each time the shaft 80 is-operated, the rack 81 will operate the gear trains connected therewith to turn the shuttle ring once around and back to its position of rest, that position being indicated in Figure l. The shuttle ring carries four grooved wheels I01, I02, I03, I84. The

wire pasess from one of the upper take-up pulleys 35 over the groove pulleys IOI, I02 and I03 when the machine is at rest, as shown in Figure 1, and under the groove wheel I04 when the ring 4 is at the end of its firstmovement, as shown in Figure 2'7.

Extending around the outside of the main frame 3 are two circular flanges I01, I08, which with a movable cam I09 pivoted at H0, and

also provided with two flanges Ill, II2 forms the means for moving the wire holding shuttle assembly I05 in the proper position to pass under the corners of the packages in a manner presently to be explained. (See Figures 1, 1, 4, 23, 24 and 27.) The cam I09 is operated by a link I I3 and lever II4, its position of rest being shown in Figure 1. ,This cam has its flanges overlapping the flanges of the fixed frame as shown in Figure l at H5, H5, H1, H8 to afford a smooth track for the shuttle assembly roller II9.

The raised portion 2 of the base I is covered by a fiat table or box support 2' which .15 secured thereto and which forms the support for the several parts of the wire holding andtwisting mechanism shown in Figures 5, 7, 8 and 9.

V Extending forwardly from the top of the table 2' are two horns I22, I23, under which the wire I2I is carried by the shuttle'ring, which horns are thick enough to allow the necessary space for the operation of the twister gear I24. (See Figures 8 and 9.) g

In order to prevent dirt from accumulating in the teeth of said gear I24 and to prevent inadvertently made ties from falling down in the machine where they might interfere with the operation of the machine, there is a plate I25 which is secured over the horns and which exin bearings no, II and u,

A belt e main wheel more. risure '1.)

ding transversely under tunable thefe I are two shafts I21, I28 one of which carries an arm I29 and the other of which carries an arm I38. (See Figures 6, 7, 8, 9 and 31.) Mounted on the shaft I21 is atube I3I carrying an arm I32, while the shaft I28 has a tube I33 with an arm I34. The arm I32 has an L-shaped plate I35 thereon insure p as shown in Figure 8. Just-outside the horns I22, I23 there are the pusher bars I38, I39, their object being to push the box and tie, or the tie alone, if a tie is made without a box or package in the machine, ahead until the tie passes the end of the plate I25.

The order of operation-of the levers I29, I30, I32 and I34, is indicated in Figure 8, by the letters A, B, C, D. In the first place when the wire shuttle presents the wire following the "at rest position, the lever I30 will come up against the wire to hold the wire end I31 in place. The

. a cutter I34 (see Figure '7) to cut oil a small piece of the tie end which is overfed to be sure of placing it for proper operation of the first lever I30. Almost at thetime' the arm I34 is rising the arm I29 begins to rise and as the wire end I31 has been fed under the end of the arm I32, said arm I23 cuts oil the wire against the underside of arm I32 where it is marked B. The arm I29 is also provided with a pin I29 to prevent the wire from slipping off during the time it is placing the wire in position to tie. The spring I36 is for the purpose of disengaging the cut-off wire end I31 from the edge of the flxed .cutter, and forcing it downward, as shown in Figure 8. It will be seen that the pin I29 passes into a hole in the horn I22 when the arm I29 is up against the wire.

The gear I24 is slotted to receive the two wires and it has two hollow trunnions I48, I which are journaled in the two slidable bars I42, I43, and said gear is rotated by the ,rack bar I44 which is slidable in the two bars I42, I43.

From an examination of Figure 8 it will be apparent that eight separate complete movements must be provided for, as follows: (1 to 4) the arms must be pushed up against the wire, in their proper order, (5) the slides I42, I43 must be advanced with the gear I24, (6) the rack I44 must be advanced to rotate the gear I24 and ('7 and 8) the two bars I38, I39 must be advanced to push the tie over onto the table I25. The movement of the bars I38, I33 is accomplished by means of two segment gears I45, I46, mounted on a shaft I41, the teeth of said gears engaging the teeth in the under-side of the bars I38, I39. The two segment gears are operated by the two turn-buckle links I48, I49 pivotally connected to two levers- I50, I50 which levers are keyed to as shown on Figure 5 and supported by a shaft 62. The lever I50 has a roller I53 which is.

I39 are operated in unison. When the package) I45, I46 to push the package ahead far enough to release. the tie from the twisting mechanism,

- the ends of said bars engaging the tie on opposite the other six' movements of sides of the twisting gear I24, and outside of the horns I22, I23.

I The gear I54 has cams 229, 229 on its opposite sides, the relation of the curves of said cams being indicated in degrees on Figures 10 and 11, and said gear is in mesh with another gear I55 having the same number of teeth, and which is mountedupon shaft 6|. The gear I55 has the cam grooves I55, I55" on its. opposite sides and the relation of the curves of said cams is indicated in degrees on Figures 12 and 13.

The shaft 64 in substantially the same hori-.- zontal plane as the shafts 60, and BI andjust out of engagement with the gear I55 carries six bellcranks I58 to I 63 inclusive for the operation of located at the front of the table 2. These bellcranks are of the two sizes shown in Figure 6, the two inner ones I60, I6I operating the slide rack bar I44 and the two bars I42, I43 respectively.

The two bars I42, I43 are connected at one end by the plate I64 (see Figs. 6 and 30) which has a depending bearing for a pivot pin I65 supporting one end of a link I66, the pin I61 supporting the other end of the link and connecting it to the bell-crank I6I (See Figures 6 and 28.) Each of the said bell-cranks I58 to I63 has a roller bearing on one side thereof as indicated at I10 on the bell-crank I63 to enter the cam grooves of the gear-I55 and the cams I56 and I51.

For the operation of the wire gripper I32 the tube II has a depending arm Hi, the shaft I21 and arm I12, the shaft I28 a depending arm I13 and the tube I33 a depending arm I14, said arms being connected by four short links I15 to I18 to four other upwardly projecting arms I19 to I82 journaled on the shaft 63. All four of the arms just mentioned are in turn connected pivotally,

by turn buckle links I83 to I86 with the four,

bell-cranks I58, I59, I62 and I63, one for each crank. (See Figures 6, 7, 27, 28, 29, 30 and 31.)

The shuttle consists of a block I 90 which is secured to a projecting tube forming a hub on one side of the gear I9I by a bolt I90. Secured to the arm I99 and extending through the hub of the gear I9I and said block I90 is a stud I93 on which the grooved wheel I03 is revolvable. (See Figures 23 and 24.) Just in front of this wheel I03 and secured to the blocks I90 is a grooved plate I94 which forms a sort of finger to hold and direct the wire end as desired. This wheel has the wire passed around it, as indicated in Figures 1 and 27 for the purpose of so curving the wire that it will be normally convex toward the package when out, thereby causing it to be perfectly fiat on the package. 0n.the upper side of the block there is a disk-like plate I95 on which there is a knurled wheel I 96, held from rotation in one direction by the pawl I91 on which a spring I98 bears. (See Figure 24.)

The grooved guide plate, I94 and the knurled wheel I96 with its pawl I91 and spring I98 form a unidirectional feed means for the wire. The knurled wheel I96 is permitted, by the pawl I91, to rotate in the direction of the feed of the wire when passing a tie around the bundle, but is locked by the pawl I91 from rotating in the opposite direction when the tie has been cut and thus prevents the wire end I 31 from being withdrawn the tying apparatus from the shuttle by the tensioning wheels 35 and The entire shuttle mechanism is carried by a short arm I99 bolted on the side of the shuttle gear-ring 4 and the shuttle itself is operated to move the wire toward and away from the package to give the necessary clearance at the corner of the package adjacent the bottom of the plate 1.

This movement is effected as follows: The block I90 and gear I9I are rigidly connected, and the latter gear is in mesh with a gear. 200 on a shaft 20I which extends through the ring 4. This shaft has an arm 202 rigidly secured thereto, which shaft has a roller II9 on a short pin 204. (See Figures 23 and 24.) v

The roller II9 travels in a circular groove formed by the two flanges frame 3. Thisgroove has the movable section I09, previously referred to, which at the time the wire end is to be presented to the gripper, raises the shuttle and wire end toward the A gripper, but since the shuttle must pass the corner again at the end of its first movement, means are provided including the link II3, arm II4, keyed on the shaft 201 and an arm 208, keyed on the same shaft to bring the bottom of the movable cam track I09 down into engagement with the lower ends of the flanges I01 and I08, at the proper time for it to hold the shuttle away from the package at the end of its half cycle operation. This movement is effected by the cam 208' which has a peripheral groove to receive a roller 208 on the lower end of the arm 208. 1, 5, 6 and 15.)

In order to rpush the package against the plate 'I to preventthe wire from turning the package over when the wire is passed around the same there, is

shaft 2| I, which has rack teeth on its under side in mesh with the teeth of a pinion 2 I 2 which pinion is carried by a shaft 2I3 which has the hand crank 2I4, said crank carrying a ure 3) for engaging holes -in a disk 2I6 to hold the pusher in any desired adjustment. (See Figures 1, 2, 3 and 25.)

The shaft 2I3 and disk 2| 6 are both supported by a tubular slide 2I1 which has teeth on its lower side in mesh 2I9, and this shaft also carries a gear 2I8 which is in mesh with a vertically slidable rack 220, said rack being held engaged with said gear by the bearing 22I. At its lower end rack 220 is connected to a lever 222 on a short shaft 223, which shaft also has 9. depending arm 224 thereon inside the base which arm has a roller 225 thereon in mesh with the groove of the cam 226. The result of the above construction is that the movable plate 2I0 can be adjusted to any desired position, but with each tie made the movable plate is moved toward the fixed plate 1 a small amount to hold the package securely while the wire is being carried around the bundle.

Loosely mounted on the shaft 62 is a lever 221 which has a roller 228 bearing on the cam 229 on the gear I54, the object of which is to raise the plate 230 through the connecting rod 23I. It will be seen that the plate 230 is pivotally mounted on the shaft 86', and it has three gears 232, 233, 234 thereon, the latter in mesh with a gear 235 on shaft 86'. (See Figures 5, 6 and 10). The shaft carrying the gear 232 has a series of serrated disks 236 thereon which project through slots 231' of the floor I26. The object is to push the disk 238 up against the bottom of the pack- I01, I08 on the main 1 (See Figures a movable plate 2I0 on a horizontal pin 2I5 (see Fig-.

with a gear 2I8 on a shaft lever Mt onthe shait 2&8.

position and action aaoaaoo age to eject it from the machine when the tie is completed, or whenever the center of gravity of the package is near enough overthe dish to make it effective. (See Figures 2 and 6.)

It will be seen that the shaft 8% is supported in two journal boxes 2M, 24!, on the lower portion oithe main frame 3. The shaft is driven by the belt 85 previously mentioned, and the belt is tightened by the pulley 8b.

The machine is started into operation by the attendant stepping on a lever 248 on a shaft Mt, Journaled in two boxes 2%, MB on the lower flange. or the base i. (See Figures 2, 3, hi and 22.) The shaft 243 has a lever 24d thereon which has a short linh 2E1 connecting it to the (See Figures 2, 2i and 22.) The shaft 249 is journaied in two bearings 2M, dim formed in the, lower part of the housing t9. (See Figure 22.) This shaft 249 carries a block iii with its upper end curved to fit the hub 352, said hub being secured on the shaft W. The hub also carries a pawl block 2% which can be lifted up to the position shown in Figure 22 whenever the lever Mt is released, the spring 2% pulling the lever up and causing the block tilt to be disengaged from the notches 255 inside the hub of the gear 86 on exactly one turn of the shaft 6B which completes one entire cycle of all of the operations of the machine.

The operation of the machine is as follows:

The wire is placed on a suitable support in such a way as to prevent the bundle of wire from tangling, and with the end leading through the plate lit to the roll 52, and then through the straightening rolls 55 to 58, the two rolls W, 51 on the slide 51' being set at the proper posi ticn with the adjusting screw it to properly hold and straighten the wire The wire is then passed under and over the grooved pulleys 35, 38 several times (see Figure 3), and then over the grooved wheels Nil,- I02 and reversely around the grooved wheel Hit, the object being to curve the wire so it will lie close The wire end is then projected 6 or 8 inches from the end of the plate its. As the machine stands at rest the shuttle is raised with two wire ends about an inch below the horn I23, Figure 8, and the first movement of the machine causes the A gripper to push the wire up against the horn I28 and to clamp the wire thereto.

The workman then places a package to be tied on the table 2" alongside the plate 1 at the point where it is desired to encircle it with the tie and steps on the pedal 245. r

The dropping oi the pawl 253 causes the gear 68 to start the machine, the first operation being to cause the A grip to engage. the wire. The shuttle ring being driven by the crank pin 84 and rack 61 starts slowly, stops and starts slowly at the end of its half cycle, and then stops slowly when its movement is being completed thereby making for most eiflcient running of the machine. The operations just described are carried out in the manner suggested by reason of the of the' driving crank=pin M with respect to the gear 9|.

At the same time the clamp A is operating, the movable plate 2H1 pushes the package over tightly against the plate I while the wire is being carried around the package, As seen the shuttle clears the corner oi the package in the first part of its movement which is away from the center of the ring because of the shape of the movable track then engaged He holds the .it slides the box to hold it in place by the roller lit, the B clamp comes up and engages the wire. No other operation than the turning 01 the ring carrying the shuttle takes place now until the ring has traveled a considerable part oi the distance around when the movable track its moves down into alignment with the rest or the trash preparatory tothe entrance therelntc of therolier M8 at the end of the half cycle movement oi the ring.

its the ring brings the shuttle under the package the C gripper comes up and cuts oil whatever end there may be 02 the wire projecting more than is necessary, this extra piece, about one-= half inch long being provided to insure the A gripper catching and securely holding the wire. The next step is for the n gripper to come up against the wire and cuts oh the length around the package against the B gripper. The horn two wires snugly together. The spring lit has in the meantime, been compressed and as soon as thewire is cut the wire end is thrown down to the position shown in Figure 8.

The shuttle ring is now at the end of its half cycle movement, and has no further function than to return to its initial 3 r i ng itionthe tightening wheels in the meantime keeping the desired tension on the wire.

During the time the shuttle ring is ret the slide carrying the gear lid is advanced to bring it over the two who ends in the position shown in e 9, andwhen' so advanced the gear is' rotated two turns to produce the tie. as soon as the tieis completed the slide and gear we are both retracted, andthe two pushers ltd, I39 are advanced to push the tie ed the horns I22, I23 and to carry the package M4: about iour inches.

' During the time the shuttle is turning over and back the disk 2% is being rotated, but not until the tie is completed is the dial: raised to aid in pullingthe pac'aase out of the machine. When placing two ties around a 25 pound dried fruit box, the disks 3%. do not catch the box on the first tie, but when the second tie is made clear of the machine at once. so has made just one turn its recess out When the shai't the pawl 258 is pushed up into of engagement with the notches oi the hub oi the wheel lit, and the machine stops. In actual become so skilliiul in feedin boxes into the machine that they will place a weight on the lever hit and allow the machine to run steadily pushing a box into place after each time. It a tie is made without a package in place the tie is completed and elected from. the machine as shown in Figure 26 with no damage to the machine.

It will be understood by those skilled in the art that this machine is capable of tying boxes, bundles or packages oi any mnd or size, so long as they are small enough to pass through the space between the wheels for supporting the revolvable ring. The term "packages" is used herein to cover any mud or a box or bundle ti by the machine.

In the form of the twister shown in Figures 8" and 9, the twister gear is shown at Etta, and it has hollow trunnions on both sides exactly the same as shown in Figures 8 and 9, but it is supported by two em bars AM, 252' cut away at the bearing 90 degrees apart, as shown in Figure 9, the wire being laid in the gear by the shuttle.

whereupon the grip- 75 when said gear is at rest,

lit

itd

. der to insure holding the twister gear pers operate in the same manner as'iin the other ures When the wire is placed in position the gear is turned one and three quarter turns or two and three quarter turns by the gear 253" which is driven by the rack 253', so the gear then stands with its wire receiving slot horizontal (see the dotted lines Figure 9"), and ready for the pushers to push the wire tie and package oif Just as in the other case. The rack 25'' is'operated by precisely the same means as the rack i except for the distance of movement. In orc re y, a pair of plates 25!, Z56 hear on the twister gear trunnions 251, 2", plates extending from the main frame the said as the plate I28. The extra gear 253" 2"" because in one position the slot therein must be kept clear for the reception of the wire. It will be noted that both portions of the wire between the grippers have had the tension released by the action of'the grippers before the twisting takes place whereby that portion of the wire being spliced has to withstand only the strain of forming the splice;

By the term "flat splice used'in this specification is meant that kind of a splice of the wire ends in which the completely twisted ends lie substantially parallel to one side of the package which has been tied, and which splice requires no bending of any kind to bring the twisted ends parallel to one side of the bundle or box after the splice has been completed.

We claim:

1. In a package tying machine, a reversely revoluble shuttle ring, means to secure a wire end thereto, means to turn the ring to encircle a package with wire and to restore the wire to its initial position, means to cut oil a length of wire, and means to twist the wire into a splice between its ends.

2. In a package tying machine, a reversely revoluble shuttle ring, means to secure a wire end thereto, means to turn thering to encircle a package and to restore-the ring and wire end to their initial positions, means to cut ed the wire of the proper length so the ends will lie alongside of each other for a short distance, and means to twist the wire into a splice along one side of the package.

3. In a package tying machine, a reversely revoluble shuttle ring, means to securea wire end thereto, means to turn the ring to encircle a package with a wire tie and to restore the ring and wire to their initial positions, means to cut oil the wire, means to grip and hold both length so the ends will lie the package.

wire ends so they will extend in opposite directions alongside of each other for a short distance, and means to twist the wire-into a splice to lie fiatalong one side of the package.

4. In a package tying machine, a reversely revolubleshuttle ring, means to secure a wire end thereto, means to turn the ring to encircle a package and to restore the ring with a projecting wire-end to the initial position of the ring, means to cut off the wheat the proper alongside of each other for a short distance, grippers to hold the two wire ends in a fixed position, and means to twist the wire into a splice to lie flat alongside 5. In a package tying machine, a re revoluble ring, a shuttle carried by the ring, means to secure a wire end thereto,.means to turn the ring to encircle a is required to operate the gear I package and to restore the ring with a projecting wire end to the initial position of the ring, means to cut of! the wire of the proper length so that the ends will lie alongside of each other for a short distance, grippers to hold the wire ends together, means to-twist the wire into a splice to lie flat alongside the package, and means to move the shuttle to present the wire end to one of the grippers.

6. In a package tying machine, a reversely revoluble ring, means thereon to carry a wire around a package, a wire gripper, means to move the wire end toward the package to present it to the gripper, means to cut oil! the wire when passed around the package, and means to twist the wire into a splice so it will lie flat alongside the package.-

7. In a package tying machine, a reversely revoluble shuttle ring, a shuttle for holding a wire secured to said ring, a set of wire grippers, means to move the shuttle to present the wire and to one of said grippers before the wire is carried around the package, means to hold the package when the wire is being carried around the same, and means to twist the wire into a splice to lie alongside the package.

8. A package tying machine, comprising a reversely revoluble shuttle ring, a wire holding anism, and a, carrier to eject. the package from the machine.

10. A package tying machine, comprising a reversely revoluble shuttle ring, means thereon to secure a wire thereto, a package supporting table having an overhanging plate under which the wire is carried,means under said plate to secure the wire ends in a fixed position and to cut off the wire of the proper length, and means to twist the wire into a flat splice.

11. A. package tying machine comprising a supporting frame, a reversely revoluble shuttle ring, means to secure a wire thereto, a package support, grippers to hold the wire ends together below said support, means to twist the wire ends together, and means to push the wire and package oil the tying mechanism.

12. In a package tying machine, a supporting frame, a reversely revoluble shuttle ring, means to secure a wire thereto, means to rotate the ring to carry the wire around the package and restore it to its initial position, a plurality of grippers to hold the wire ends, means to twist the wire into a splice along one side 0f the package, and means to move the tie and package off I the tying mechanism.

13. In a package tying machine, a supporting frame, a reversely revoluble shuttle ring, a shuttle- 

